Today's tide times for Grassy Key (South), Florida
The predicted tide times today on Sunday 07 December 2025 for Grassy Key (South) are: first low tide at 4:40am, first high tide at 11:07am, second low tide at 3:34pm, second high tide at 10:13pm. Sunrise is at 6:55am and sunset is at 5:35pm.
Today's tide times for Grassy Key (South): Sunday 07 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 4:40 AM(Sun 07 December) | -0.45 ft (-0.14 m) |
| High Tide | 11:07 AM(Sun 07 December) | 1.3 ft (0.4 m) |
| Low Tide | 3:34 PM(Sun 07 December) | 0.6 ft (0.18 m) |
| High Tide | 10:13 PM(Sun 07 December) | 2.74 ft (0.84 m) |
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Tide chart for Grassy Key (South)Showing low and high tide times for the next 30 days at Grassy Key (South). Tide Times are EST (UTC -5.0hrs).
View Grassy Key (South) 7 Day Tide Chart Image.


HIGH (EST) |
LOW (EST) |
| Sun |
Moon Set Rise |
| Wind |
Sunday, 7 Dec | 8 Dec | 9 Dec | 10 Dec | 11 Dec | 12 Dec | 13 Dec | 14 Dec | 15 Dec | 16 Dec | 17 Dec | 18 Dec | 19 Dec | 20 Dec | 21 Dec | 22 Dec | 23 Dec | 24 Dec | 25 Dec | 26 Dec | 27 Dec | 28 Dec | 29 Dec | 30 Dec | 31 Dec | 1 Jan | 2 Jan | 3 Jan | 4 Jan | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AM | PM | Mon | Tue | Wed | Thu | Fri | Sat | Sun | Mon | Tue | Wed | Thu | Fri | Sat | Sun | Mon | Tue | Wed | Thu | Fri | Sat | Sun | Mon | Tue | Wed | Thu | Fri | Sat | Sun | ||
11:07AM0.40m | 10:13PM0.84m | 11:53AM0.39m 11:06PM0.76m | 12:41PM0.40m | 00:02AM0.67m 1:31PM0.42m | 1:03AM0.57m 2:22PM0.46m | 2:15AM0.48m 3:10PM0.50m | 3:48AM0.42m 3:55PM0.53m | 5:32AM0.39m 4:36PM0.57m | 6:44AM0.38m 5:16PM0.60m | 7:33AM0.38m 5:55PM0.63m | 8:08AM0.38m 6:36PM0.66m | 8:37AM0.38m 7:16PM0.67m | 9:05AM0.38m 7:56PM0.69m | 9:36AM0.37m 8:36PM0.70m | 10:09AM0.37m 9:16PM0.69m | 10:46AM0.37m 9:56PM0.68m | 11:23AM0.37m 10:38PM0.65m | 12:01PM0.39m 11:24PM0.60m | 12:39PM0.41m | 00:17AM0.54m 1:18PM0.45m | 1:19AM0.46m 2:00PM0.50m | 2:35AM0.39m 2:46PM0.56m | 4:09AM0.34m 3:37PM0.62m | 5:51AM0.31m 4:34PM0.69m | 7:08AM0.31m 5:34PM0.74m | 8:04AM0.32m 6:34PM0.77m | 8:48AM0.33m 7:32PM0.79m | 9:28AM0.33m 8:27PM0.79m | 10:05AM0.35m 9:19PM0.76m | ||
4:40AM-0.14m | 3:34PM0.18m | 5:33AM-0.08m 4:32PM0.19m | 6:26AM-0.02m 5:40PM0.20m | 7:19AM0.04m 7:03PM0.20m | 8:10AM0.09m 8:29PM0.19m | 8:59AM0.14m 9:47PM0.14m | 9:46AM0.18m 10:53PM0.09m | 10:31AM0.21m 11:48PM0.04m | 11:14AM0.23m | 00:36AM-0.01m 11:54AM0.23m | 1:19AM-0.04m 12:32PM0.23m | 2:00AM-0.06m 1:07PM0.22m | 2:39AM-0.07m 1:40PM0.21m | 3:18AM-0.08m 2:11PM0.20m | 3:56AM-0.08m 2:42PM0.20m | 4:33AM-0.07m 3:17PM0.19m | 5:10AM-0.05m 3:58PM0.19m | 5:46AM-0.03m 4:50PM0.18m | 6:23AM0.00m 5:57PM0.17m | 7:00AM0.05m 7:19PM0.14m | 7:39AM0.09m 8:46PM0.08m | 8:23AM0.14m 10:04PM0.01m | 9:13AM0.18m 11:12PM-0.08m | 10:07AM0.20m | 00:12AM-0.15m 11:03AM0.19m | 1:08AM-0.20m 11:59AM0.17m | 2:00AM-0.23m 12:54PM0.14m | 2:50AM-0.23m 1:48PM0.10m | 3:37AM-0.21m 2:43PM0.07m | ||
6:55AM | 5:35PM | 6:56AM 5:35PM | 6:57AM 5:35PM | 6:57AM 5:35PM | 6:58AM 5:36PM | 6:58AM 5:36PM | 6:59AM 5:36PM | 7:00AM 5:37PM | 7:00AM 5:37PM | 7:01AM 5:37PM | 7:01AM 5:38PM | 7:02AM 5:38PM | 7:03AM 5:39PM | 7:03AM 5:39PM | 7:04AM 5:40PM | 7:04AM 5:40PM | 7:05AM 5:41PM | 7:05AM 5:41PM | 7:05AM 5:42PM | 7:06AM 5:42PM | 7:06AM 5:43PM | 7:07AM 5:44PM | 7:07AM 5:44PM | 7:07AM 5:45PM | 7:08AM 5:45PM | 7:08AM 5:46PM | 7:08AM 5:47PM | 7:08AM 5:47PM | 7:09AM 5:48PM | ||
0.58% - (Waning Gibbous) 9:48AM | 0.59% - (Waning Gibbous) 8:38PM | 0.63% - (Waning Gibbous) 10:36AM 9:44PM | 0.67% - (Waning Gibbous) 11:17AM 10:45PM | 0.7% - (Waning Gibbous) 11:52AM 11:42PM | 0.72% - (Waning Gibbous) 12:24PM | 0.74% - (Last Quarter) 12:54PM 00:35AM | 0.77% - (Last Quarter) 1:23PM 1:27AM | 0.81% - (Waning Crescent) 1:53PM 2:19AM | 0.84% - (Waning Crescent) 2:26PM 3:11AM | 0.88% - (Waning Crescent) 3:01PM 4:04AM | 0.91% - (Waning Crescent) 3:41PM 4:59AM | 0.95% - (Waning Crescent) 4:26PM 5:54AM | 0.98% - (New Moon) 5:16PM 6:49AM | 0.03% - (Waxing Crescent) 6:10PM 7:41AM | 0.07% - (Waxing Crescent) 7:06PM 8:29AM | 0.1% - (Waxing Crescent) 8:04PM 9:13AM | 0.14% - (Waxing Crescent) 9:01PM 9:53AM | 0.17% - (Waxing Crescent) 9:58PM 10:28AM | 0.21% - (Waxing Crescent) 10:55PM 11:02AM | 0.24% - (First Quarter) 11:51PM 11:34AM | 0.28% - (First Quarter) 12:06PM | 0.31% - (Waxing Gibbous) 00:50AM 12:41PM | 0.35% - (Waxing Gibbous) 1:51AM 1:19PM | 0.38% - (Waxing Gibbous) 2:57AM 2:03PM | 0.42% - (Waxing Gibbous) 4:06AM 2:55PM | 0.45% - (Waxing Gibbous) 5:17AM 3:55PM | 0.49% - (Full Moon) 6:27AM 5:03PM | 0.52% - (Full Moon) 7:29AM 6:13PM | 0.56% - (Waning Gibbous) 8:23AM 7:22PM | ||

Grassy Key (South) tide chart key:
The tide chart above shows the height and times of high tide and low tide for Grassy Key (South), Florida. The red flashing dot shows the tide time right now. The grey shading corresponds to nighttime hours between sunset and sunrise at Grassy Key (South).
Tide Times are EST (UTC -5.0hrs). Last Spring High Tide at Grassy Key (South) was on Fri 05 Dec (height: 0.91m 3.0ft). Next high Spring Tide at Grassy Key (South) will be on Sat 20 Dec (height: 0.70m 2.3ft).
Grassy Key (South) tide chart key: The tide chart above shows the height and times of high tide and low tide for Grassy Key (South), Florida. The grey shading corresponds to nighttime hours between sunset and sunrise at Grassy Key (South).
Tide Times are EST (UTC -5.0hrs). Last Spring High Tide at Grassy Key (South) was on Fri 05 Dec (height: 0.91m 3.0ft). Next high Spring Tide at Grassy Key (South) will be on Sat 20 Dec (height: 0.70m 2.3ft).
Grassy Key (South) tide times for December
December Tide charts for Grassy Key (South): The tide charts below show the height, time and date of high and low tides for the next 30 days.
Tide Times for Grassy Key (South) (tomorrow): Monday 08 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 5:33 AM(Mon 08 December) | -0.27 ft (-0.08 m) |
| High Tide | 11:53 AM(Mon 08 December) | 1.29 ft (0.39 m) |
| Low Tide | 4:32 PM(Mon 08 December) | 0.62 ft (0.19 m) |
| High Tide | 11:06 PM(Mon 08 December) | 2.5 ft (0.76 m) |
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Tide Times for Grassy Key (South): Tuesday 09 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 6:26 AM(Tue 09 December) | -0.07 ft (-0.02 m) |
| High Tide | 12:41 PM(Tue 09 December) | 1.32 ft (0.4 m) |
| Low Tide | 5:40 PM(Tue 09 December) | 0.66 ft (0.2 m) |
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Tide Times for Grassy Key (South): Wednesday 10 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 00:02 AM(Wed 10 December) | 2.2 ft (0.67 m) |
| Low Tide | 7:19 AM(Wed 10 December) | 0.12 ft (0.04 m) |
| High Tide | 1:31 PM(Wed 10 December) | 1.39 ft (0.42 m) |
| Low Tide | 7:03 PM(Wed 10 December) | 0.67 ft (0.2 m) |
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Tide Times for Grassy Key (South): Thursday 11 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 1:03 AM(Thu 11 December) | 1.88 ft (0.57 m) |
| Low Tide | 8:10 AM(Thu 11 December) | 0.31 ft (0.09 m) |
| High Tide | 2:22 PM(Thu 11 December) | 1.5 ft (0.46 m) |
| Low Tide | 8:29 PM(Thu 11 December) | 0.61 ft (0.19 m) |
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Tide Times for Grassy Key (South): Friday 12 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 2:15 AM(Fri 12 December) | 1.59 ft (0.48 m) |
| Low Tide | 8:59 AM(Fri 12 December) | 0.47 ft (0.14 m) |
| High Tide | 3:10 PM(Fri 12 December) | 1.62 ft (0.5 m) |
| Low Tide | 9:47 PM(Fri 12 December) | 0.47 ft (0.14 m) |
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Tide Times for Grassy Key (South): Saturday 13 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 3:48 AM(Sat 13 December) | 1.38 ft (0.42 m) |
| Low Tide | 9:46 AM(Sat 13 December) | 0.59 ft (0.18 m) |
| High Tide | 3:55 PM(Sat 13 December) | 1.75 ft (0.53 m) |
| Low Tide | 10:53 PM(Sat 13 December) | 0.29 ft (0.09 m) |
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Tide Times for Grassy Key (South): Sunday 14 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 5:32 AM(Sun 14 December) | 1.28 ft (0.39 m) |
| Low Tide | 10:31 AM(Sun 14 December) | 0.69 ft (0.21 m) |
| High Tide | 4:36 PM(Sun 14 December) | 1.87 ft (0.57 m) |
| Low Tide | 11:48 PM(Sun 14 December) | 0.12 ft (0.04 m) |
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Tide Times for Grassy Key (South): Monday 15 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 6:44 AM(Mon 15 December) | 1.25 ft (0.38 m) |
| Low Tide | 11:14 AM(Mon 15 December) | 0.75 ft (0.23 m) |
| High Tide | 5:16 PM(Mon 15 December) | 1.98 ft (0.6 m) |
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Tide Times for Grassy Key (South): Tuesday 16 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 00:36 AM(Tue 16 December) | -0.02 ft (-0.01 m) |
| High Tide | 7:33 AM(Tue 16 December) | 1.25 ft (0.38 m) |
| Low Tide | 11:54 AM(Tue 16 December) | 0.77 ft (0.23 m) |
| High Tide | 5:55 PM(Tue 16 December) | 2.07 ft (0.63 m) |
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Tide Times for Grassy Key (South): Wednesday 17 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 1:19 AM(Wed 17 December) | -0.13 ft (-0.04 m) |
| High Tide | 8:08 AM(Wed 17 December) | 1.25 ft (0.38 m) |
| Low Tide | 12:32 PM(Wed 17 December) | 0.76 ft (0.23 m) |
| High Tide | 6:36 PM(Wed 17 December) | 2.15 ft (0.66 m) |
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Tide Times for Grassy Key (South): Thursday 18 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 2:00 AM(Thu 18 December) | -0.19 ft (-0.06 m) |
| High Tide | 8:37 AM(Thu 18 December) | 1.25 ft (0.38 m) |
| Low Tide | 1:07 PM(Thu 18 December) | 0.73 ft (0.22 m) |
| High Tide | 7:16 PM(Thu 18 December) | 2.21 ft (0.67 m) |
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Tide Times for Grassy Key (South): Friday 19 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 2:39 AM(Fri 19 December) | -0.23 ft (-0.07 m) |
| High Tide | 9:05 AM(Fri 19 December) | 1.24 ft (0.38 m) |
| Low Tide | 1:40 PM(Fri 19 December) | 0.7 ft (0.21 m) |
| High Tide | 7:56 PM(Fri 19 December) | 2.26 ft (0.69 m) |
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Tide Times for Grassy Key (South): Saturday 20 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 3:18 AM(Sat 20 December) | -0.25 ft (-0.08 m) |
| High Tide | 9:36 AM(Sat 20 December) | 1.23 ft (0.37 m) |
| Low Tide | 2:11 PM(Sat 20 December) | 0.67 ft (0.2 m) |
| High Tide | 8:36 PM(Sat 20 December) | 2.29 ft (0.7 m) |
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Tide Times for Grassy Key (South): Sunday 21 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 3:56 AM(Sun 21 December) | -0.25 ft (-0.08 m) |
| High Tide | 10:09 AM(Sun 21 December) | 1.22 ft (0.37 m) |
| Low Tide | 2:42 PM(Sun 21 December) | 0.64 ft (0.2 m) |
| High Tide | 9:16 PM(Sun 21 December) | 2.28 ft (0.69 m) |
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Tide Times for Grassy Key (South): Monday 22 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 4:33 AM(Mon 22 December) | -0.22 ft (-0.07 m) |
| High Tide | 10:46 AM(Mon 22 December) | 1.22 ft (0.37 m) |
| Low Tide | 3:17 PM(Mon 22 December) | 0.63 ft (0.19 m) |
| High Tide | 9:56 PM(Mon 22 December) | 2.24 ft (0.68 m) |
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Tide Times for Grassy Key (South): Tuesday 23 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 5:10 AM(Tue 23 December) | -0.18 ft (-0.05 m) |
| High Tide | 11:23 AM(Tue 23 December) | 1.23 ft (0.37 m) |
| Low Tide | 3:58 PM(Tue 23 December) | 0.62 ft (0.19 m) |
| High Tide | 10:38 PM(Tue 23 December) | 2.14 ft (0.65 m) |
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Tide Times for Grassy Key (South): Wednesday 24 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 5:46 AM(Wed 24 December) | -0.1 ft (-0.03 m) |
| High Tide | 12:01 PM(Wed 24 December) | 1.27 ft (0.39 m) |
| Low Tide | 4:50 PM(Wed 24 December) | 0.6 ft (0.18 m) |
| High Tide | 11:24 PM(Wed 24 December) | 1.98 ft (0.6 m) |
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Tide Times for Grassy Key (South): Thursday 25 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 6:23 AM(Thu 25 December) | 0.01 ft (0.0 m) |
| High Tide | 12:39 PM(Thu 25 December) | 1.36 ft (0.41 m) |
| Low Tide | 5:57 PM(Thu 25 December) | 0.56 ft (0.17 m) |
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Tide Times for Grassy Key (South): Friday 26 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 00:17 AM(Fri 26 December) | 1.76 ft (0.54 m) |
| Low Tide | 7:00 AM(Fri 26 December) | 0.16 ft (0.05 m) |
| High Tide | 1:18 PM(Fri 26 December) | 1.49 ft (0.45 m) |
| Low Tide | 7:19 PM(Fri 26 December) | 0.46 ft (0.14 m) |
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Tide Times for Grassy Key (South): Saturday 27 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 1:19 AM(Sat 27 December) | 1.51 ft (0.46 m) |
| Low Tide | 7:39 AM(Sat 27 December) | 0.31 ft (0.09 m) |
| High Tide | 2:00 PM(Sat 27 December) | 1.65 ft (0.5 m) |
| Low Tide | 8:46 PM(Sat 27 December) | 0.27 ft (0.08 m) |
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Tide Times for Grassy Key (South): Sunday 28 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 2:35 AM(Sun 28 December) | 1.27 ft (0.39 m) |
| Low Tide | 8:23 AM(Sun 28 December) | 0.46 ft (0.14 m) |
| High Tide | 2:46 PM(Sun 28 December) | 1.85 ft (0.56 m) |
| Low Tide | 10:04 PM(Sun 28 December) | 0.02 ft (0.01 m) |
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Tide Times for Grassy Key (South): Monday 29 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 4:09 AM(Mon 29 December) | 1.1 ft (0.34 m) |
| Low Tide | 9:13 AM(Mon 29 December) | 0.58 ft (0.18 m) |
| High Tide | 3:37 PM(Mon 29 December) | 2.05 ft (0.62 m) |
| Low Tide | 11:12 PM(Mon 29 December) | -0.26 ft (-0.08 m) |
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Tide Times for Grassy Key (South): Tuesday 30 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| High Tide | 5:51 AM(Tue 30 December) | 1.03 ft (0.31 m) |
| Low Tide | 10:07 AM(Tue 30 December) | 0.64 ft (0.2 m) |
| High Tide | 4:34 PM(Tue 30 December) | 2.25 ft (0.69 m) |
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Tide Times for Grassy Key (South): Wednesday 31 December 2025
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 00:12 AM(Wed 31 December) | -0.5 ft (-0.15 m) |
| High Tide | 7:08 AM(Wed 31 December) | 1.03 ft (0.31 m) |
| Low Tide | 11:03 AM(Wed 31 December) | 0.62 ft (0.19 m) |
| High Tide | 5:34 PM(Wed 31 December) | 2.42 ft (0.74 m) |
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Tide Times for Grassy Key (South): Thursday 01 January 2026
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 1:08 AM(Thu 01 January) | -0.66 ft (-0.2 m) |
| High Tide | 8:04 AM(Thu 01 January) | 1.05 ft (0.32 m) |
| Low Tide | 11:59 AM(Thu 01 January) | 0.56 ft (0.17 m) |
| High Tide | 6:34 PM(Thu 01 January) | 2.53 ft (0.77 m) |
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Tide Times for Grassy Key (South): Friday 02 January 2026
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 2:00 AM(Fri 02 January) | -0.75 ft (-0.23 m) |
| High Tide | 8:48 AM(Fri 02 January) | 1.07 ft (0.33 m) |
| Low Tide | 12:54 PM(Fri 02 January) | 0.45 ft (0.14 m) |
| High Tide | 7:32 PM(Fri 02 January) | 2.6 ft (0.79 m) |
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Tide Times for Grassy Key (South): Saturday 03 January 2026
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 2:50 AM(Sat 03 January) | -0.76 ft (-0.23 m) |
| High Tide | 9:28 AM(Sat 03 January) | 1.09 ft (0.33 m) |
| Low Tide | 1:48 PM(Sat 03 January) | 0.33 ft (0.1 m) |
| High Tide | 8:27 PM(Sat 03 January) | 2.59 ft (0.79 m) |
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Tide Times for Grassy Key (South): Sunday 04 January 2026
| Tide | Time (EST)& Date | Height |
|---|---|---|
| Low Tide | 3:37 AM(Sun 04 January) | -0.7 ft (-0.21 m) |
| High Tide | 10:05 AM(Sun 04 January) | 1.14 ft (0.35 m) |
| Low Tide | 2:43 PM(Sun 04 January) | 0.24 ft (0.07 m) |
| High Tide | 9:19 PM(Sun 04 January) | 2.49 ft (0.76 m) |
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NOTE: Use of this site for Grassy Key (South), Florida tide times is subject to our terms.
NOTE: We do not accept responsibility for any amendments or changes to the data whilst it is displayed / printed from our website.
